The BMW 3 SERIES (1998-06) 330I 4DR SALOON SPORT is a four-door petrol executive saloon: a more powerful alternative to a family hatchback, aimed at drivers wanting everyday comfort with a sportier feel. In the UK used-car market it sits among premium compact saloons, competing with Audi A4 and Mercedes-Benz C-Class models. Mycarcheck.com records 64 look-ups covering 37 different VINs, with an average private-sale valuation of £700 and average recorded mileage of 121,000 miles. These figures describe cars checked, not guaranteed prices or condition. The cars averaged about 3,000 miles a year and nearly six previous keepers, useful reminders to check service history, ownership and current condition carefully. The powerful 330i suits drivers wanting an engaging commute or weekend car, with room for family journeys. Against Audi and Mercedes rivals, it stands out for handling and a rewarding drive, but age and performance can mean running costs; check history and condition.